diff options
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/cirrus/cs_dsp.c | 175 | ||||
| -rw-r--r-- | drivers/firmware/cirrus/test/cs_dsp_test_callbacks.c | 1 | ||||
| -rw-r--r-- | drivers/firmware/efi/cper-arm.c | 52 | ||||
| -rw-r--r-- | drivers/firmware/efi/cper.c | 62 | ||||
| -rw-r--r-- | drivers/firmware/efi/efi.c | 3 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/Makefile | 4 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/efi-stub.c | 2 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/efistub.h | 31 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/gop.c | 137 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/x86-5lvl.c | 4 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/x86-stub.c | 104 | ||||
| -rw-r--r-- | drivers/firmware/efi/memattr.c | 7 | ||||
| -rw-r--r-- | drivers/firmware/efi/riscv-runtime.c | 10 | ||||
| -rw-r--r-- | drivers/firmware/efi/runtime-wrappers.c | 17 | ||||
| -rw-r--r-- | drivers/firmware/efi/stmm/mm_communication.h | 6 | ||||
| -rw-r--r-- | drivers/firmware/qcom/qcom_scm.c | 17 | ||||
| -rw-r--r-- | drivers/firmware/stratix10-svc.c | 7 |
17 files changed, 411 insertions, 228 deletions
diff --git a/drivers/firmware/cirrus/cs_dsp.c b/drivers/firmware/cirrus/cs_dsp.c index f51047d8ea64..525ac0f0a75d 100644 --- a/drivers/firmware/cirrus/cs_dsp.c +++ b/drivers/firmware/cirrus/cs_dsp.c @@ -9,9 +9,11 @@ * Cirrus Logic International Semiconductor Ltd. */ +#include <linux/cleanup.h> #include <linux/ctype.h> #include <linux/debugfs.h> #include <linux/delay.h> +#include <linux/math.h> #include <linux/minmax.h> #include <linux/module.h> #include <linux/moduleparam.h> @@ -316,44 +318,6 @@ struct cs_dsp_alg_region_list_item { struct cs_dsp_alg_region alg_region; }; -struct cs_dsp_buf { - struct list_head list; - void *buf; -}; - -static struct cs_dsp_buf *cs_dsp_buf_alloc(const void *src, size_t len, - struct list_head *list) -{ - struct cs_dsp_buf *buf = kzalloc(sizeof(*buf), GFP_KERNEL); - - if (buf == NULL) - return NULL; - - buf->buf = vmalloc(len); - if (!buf->buf) { - kfree(buf); - return NULL; - } - memcpy(buf->buf, src, len); - - if (list) - list_add_tail(&buf->list, list); - - return buf; -} - -static void cs_dsp_buf_free(struct list_head *list) -{ - while (!list_empty(list)) { - struct cs_dsp_buf *buf = list_first_entry(list, - struct cs_dsp_buf, - list); - list_del(&buf->list); - vfree(buf->buf); - kfree(buf); - } -} - /** * cs_dsp_mem_region_name() - Return a name string for a memory type * @type: the memory type to match @@ -388,18 +352,14 @@ EXPORT_SYMBOL_NS_GPL(cs_dsp_mem_region_name, "FW_CS_DSP"); #ifdef CONFIG_DEBUG_FS static void cs_dsp_debugfs_save_wmfwname(struct cs_dsp *dsp, const char *s) { - char *tmp = kasprintf(GFP_KERNEL, "%s\n", s); - kfree(dsp->wmfw_file_name); - dsp->wmfw_file_name = tmp; + dsp->wmfw_file_name = kstrdup(s, GFP_KERNEL); } static void cs_dsp_debugfs_save_binname(struct cs_dsp *dsp, const char *s) { - char *tmp = kasprintf(GFP_KERNEL, "%s\n", s); - kfree(dsp->bin_file_name); - dsp->bin_file_name = tmp; + dsp->bin_file_name = kstrdup(s, GFP_KERNEL); } static void cs_dsp_debugfs_clear(struct cs_dsp *dsp) @@ -410,24 +370,33 @@ static void cs_dsp_debugfs_clear(struct cs_dsp *dsp) dsp->bin_file_name = NULL; } +static ssize_t cs_dsp_debugfs_string_read(struct cs_dsp *dsp, + char __user *user_buf, + size_t count, loff_t *ppos, + const char **pstr) +{ + const char *str __free(kfree) = NULL; + + scoped_guard(mutex, &dsp->pwr_lock) { + if (!*pstr) + return 0; + + str = kasprintf(GFP_KERNEL, "%s\n", *pstr); + if (!str) + return -ENOMEM; + + return simple_read_from_buffer(user_buf, count, ppos, str, strlen(str)); + } +} + static ssize_t cs_dsp_debugfs_wmfw_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct cs_dsp *dsp = file->private_data; - ssize_t ret; - - mutex_lock(&dsp->pwr_lock); - if (!dsp->wmfw_file_name || !dsp->booted) - ret = 0; - else - ret = simple_read_from_buffer(user_buf, count, ppos, - dsp->wmfw_file_name, - strlen(dsp->wmfw_file_name)); - - mutex_unlock(&dsp->pwr_lock); - return ret; + return cs_dsp_debugfs_string_read(dsp, user_buf, count, ppos, + &dsp->wmfw_file_name); } static ssize_t cs_dsp_debugfs_bin_read(struct file *file, @@ -435,19 +404,9 @@ static ssize_t cs_dsp_debugfs_bin_read(struct file *file, size_t count, loff_t *ppos) { struct cs_dsp *dsp = file->private_data; - ssize_t ret; - - mutex_lock(&dsp->pwr_lock); - if (!dsp->bin_file_name || !dsp->booted) - ret = 0; - else - ret = simple_read_from_buffer(user_buf, count, ppos, - dsp->bin_file_name, - strlen(dsp->bin_file_name)); - - mutex_unlock(&dsp->pwr_lock); - return ret; + return cs_dsp_debugfs_string_read(dsp, user_buf, count, ppos, + &dsp->bin_file_name); } static const struct { @@ -479,9 +438,11 @@ static int cs_dsp_debugfs_read_controls_show(struct seq_file *s, void *ignored) struct cs_dsp_coeff_ctl *ctl; unsigned int reg; + guard(mutex)(&dsp->pwr_lock); + list_for_each_entry(ctl, &dsp->ctl_list, list) { cs_dsp_coeff_base_reg(ctl, ®, 0); - seq_printf(s, "%22.*s: %#8zx %s:%08x %#8x %s %#8x %#4x %c%c%c%c %s %s\n", + seq_printf(s, "%22.*s: %#8x %s:%08x %#8x %s %#8x %#4x %c%c%c%c %s %s\n", ctl->subname_len, ctl->subname, ctl->len, cs_dsp_mem_region_name(ctl->alg_region.type), ctl->offset, reg, ctl->fw_name, ctl->alg_region.alg, ctl->type, @@ -1028,7 +989,7 @@ static void cs_dsp_signal_event_controls(struct cs_dsp *dsp, static void cs_dsp_free_ctl_blk(struct cs_dsp_coeff_ctl *ctl) { - kfree(ctl->cache); + kvfree(ctl->cache); kfree(ctl->subname); kfree(ctl); } @@ -1078,7 +1039,7 @@ static int cs_dsp_create_control(struct cs_dsp *dsp, ctl->type = type; ctl->offset = offset; ctl->len = len; - ctl->cache = kzalloc(ctl->len, GFP_KERNEL); + ctl->cache = kvzalloc(ctl->len, GFP_KERNEL); if (!ctl->cache) { ret = -ENOMEM; goto err_ctl_subname; @@ -1096,7 +1057,7 @@ static int cs_dsp_create_control(struct cs_dsp *dsp, err_list_del: list_del(&ctl->list); - kfree(ctl->cache); + kvfree(ctl->cache); err_ctl_subname: kfree(ctl->subname); err_ctl: @@ -1485,7 +1446,9 @@ static int cs_dsp_load(struct cs_dsp *dsp, const struct firmware *firmware, const struct wmfw_region *region; const struct cs_dsp_region *mem; const char *region_name; - struct cs_dsp_buf *buf; + u8 *buf __free(kfree) = NULL; + size_t buf_len = 0; + size_t region_len; unsigned int reg; int regions = 0; int ret, offset, type; @@ -1605,23 +1568,23 @@ static int cs_dsp_load(struct cs_dsp *dsp, const struct firmware *firmware, region_name); if (reg) { - buf = cs_dsp_buf_alloc(region->data, - le32_to_cpu(region->len), - &buf_list); - if (!buf) { - cs_dsp_err(dsp, "Out of memory\n"); - ret = -ENOMEM; - goto out_fw; + region_len = le32_to_cpu(region->len); + if (region_len > buf_len) { + buf_len = round_up(region_len, PAGE_SIZE); + kfree(buf); + buf = kmalloc(buf_len, GFP_KERNEL | GFP_DMA); + if (!buf) { + ret = -ENOMEM; + goto out_fw; + } } - ret = regmap_raw_write(regmap, reg, buf->buf, - le32_to_cpu(region->len)); + memcpy(buf, region->data, region_len); + ret = regmap_raw_write(regmap, reg, buf, region_len); if (ret != 0) { cs_dsp_err(dsp, - "%s.%d: Failed to write %d bytes at %d in %s: %d\n", - file, regions, - le32_to_cpu(region->len), offset, - region_name, ret); + "%s.%d: Failed to write %zu bytes at %d in %s: %d\n", + file, regions, region_len, offset, region_name, ret); goto out_fw; } } @@ -1638,8 +1601,6 @@ static int cs_dsp_load(struct cs_dsp *dsp, const struct firmware *firmware, ret = 0; out_fw: - cs_dsp_buf_free(&buf_list); - if (ret == -EOVERFLOW) cs_dsp_err(dsp, "%s: file content overflows file data\n", file); @@ -2171,7 +2132,9 @@ static int cs_dsp_load_coeff(struct cs_dsp *dsp, const struct firmware *firmware struct cs_dsp_alg_region *alg_region; const char *region_name; int ret, pos, blocks, type, offset, reg, version; - struct cs_dsp_buf *buf; + u8 *buf __free(kfree) = NULL; + size_t buf_len = 0; + size_t region_len; if (!firmware) return 0; @@ -2313,20 +2276,22 @@ static int cs_dsp_load_coeff(struct cs_dsp *dsp, const struct firmware *firmware } if (reg) { - buf = cs_dsp_buf_alloc(blk->data, - le32_to_cpu(blk->len), - &buf_list); - if (!buf) { - cs_dsp_err(dsp, "Out of memory\n"); - ret = -ENOMEM; - goto out_fw; + region_len = le32_to_cpu(blk->len); + if (region_len > buf_len) { + buf_len = round_up(region_len, PAGE_SIZE); + kfree(buf); + buf = kmalloc(buf_len, GFP_KERNEL | GFP_DMA); + if (!buf) { + ret = -ENOMEM; + goto out_fw; + } } - cs_dsp_dbg(dsp, "%s.%d: Writing %d bytes at %x\n", - file, blocks, le32_to_cpu(blk->len), - reg); - ret = regmap_raw_write(regmap, reg, buf->buf, - le32_to_cpu(blk->len)); + memcpy(buf, blk->data, region_len); + + cs_dsp_dbg(dsp, "%s.%d: Writing %zu bytes at %x\n", + file, blocks, region_len, reg); + ret = regmap_raw_write(regmap, reg, buf, region_len); if (ret != 0) { cs_dsp_err(dsp, "%s.%d: Failed to write to %x in %s: %d\n", @@ -2346,8 +2311,6 @@ static int cs_dsp_load_coeff(struct cs_dsp *dsp, const struct firmware *firmware ret = 0; out_fw: - cs_dsp_buf_free(&buf_list); - if (ret == -EOVERFLOW) cs_dsp_err(dsp, "%s: file content overflows file data\n", file); @@ -2366,6 +2329,9 @@ static int cs_dsp_create_name(struct cs_dsp *dsp) return 0; } +static const struct cs_dsp_client_ops cs_dsp_default_client_ops = { +}; + static int cs_dsp_common_init(struct cs_dsp *dsp) { int ret; @@ -2379,6 +2345,9 @@ static int cs_dsp_common_init(struct cs_dsp *dsp) mutex_init(&dsp->pwr_lock); + if (!dsp->client_ops) + dsp->client_ops = &cs_dsp_default_client_ops; + #ifdef CONFIG_DEBUG_FS /* Ensure this is invalid if client never provides a debugfs root */ dsp->debugfs_root = ERR_PTR(-ENODEV); diff --git a/drivers/firmware/cirrus/test/cs_dsp_test_callbacks.c b/drivers/firmware/cirrus/test/cs_dsp_test_callbacks.c index 8a9b66a3b7d3..e5a389808e5f 100644 --- a/drivers/firmware/cirrus/test/cs_dsp_test_callbacks.c +++ b/drivers/firmware/cirrus/test/cs_dsp_test_callbacks.c @@ -600,6 +600,7 @@ KUNIT_ARRAY_PARAM(cs_dsp_callbacks_ops, static const struct cs_dsp_callbacks_test_param cs_dsp_no_callbacks_cases[] = { { .ops = &cs_dsp_callback_test_empty_client_ops, .case_name = "empty ops" }, + { .ops = NULL, .case_name = "NULL ops" }, }; KUNIT_ARRAY_PARAM(cs_dsp_no_callbacks, diff --git a/drivers/firmware/efi/cper-arm.c b/drivers/firmware/efi/cper-arm.c index f0a63d09d3c4..76542a53e202 100644 --- a/drivers/firmware/efi/cper-arm.c +++ b/drivers/firmware/efi/cper-arm.c @@ -93,15 +93,11 @@ static void cper_print_arm_err_info(const char *pfx, u32 type, bool proc_context_corrupt, corrected, precise_pc, restartable_pc; bool time_out, access_mode; - /* If the type is unknown, bail. */ - if (type > CPER_ARM_MAX_TYPE) - return; - /* * Vendor type errors have error information values that are vendor * specific. */ - if (type == CPER_ARM_VENDOR_ERROR) + if (type & CPER_ARM_VENDOR_ERROR) return; if (error_info & CPER_ARM_ERR_VALID_TRANSACTION_TYPE) { @@ -116,43 +112,38 @@ static void cper_print_arm_err_info(const char *pfx, u32 type, if (error_info & CPER_ARM_ERR_VALID_OPERATION_TYPE) { op_type = ((error_info >> CPER_ARM_ERR_OPERATION_SHIFT) & CPER_ARM_ERR_OPERATION_MASK); - switch (type) { - case CPER_ARM_CACHE_ERROR: + if (type & CPER_ARM_CACHE_ERROR) { if (op_type < ARRAY_SIZE(arm_cache_err_op_strs)) { - printk("%soperation type: %s\n", pfx, + printk("%scache error, operation type: %s\n", pfx, arm_cache_err_op_strs[op_type]); } - break; - case CPER_ARM_TLB_ERROR: + } + if (type & CPER_ARM_TLB_ERROR) { if (op_type < ARRAY_SIZE(arm_tlb_err_op_strs)) { - printk("%soperation type: %s\n", pfx, + printk("%sTLB error, operation type: %s\n", pfx, arm_tlb_err_op_strs[op_type]); } - break; - case CPER_ARM_BUS_ERROR: + } + if (type & CPER_ARM_BUS_ERROR) { if (op_type < ARRAY_SIZE(arm_bus_err_op_strs)) { - printk("%soperation type: %s\n", pfx, + printk("%sbus error, operation type: %s\n", pfx, arm_bus_err_op_strs[op_type]); } - break; } } if (error_info & CPER_ARM_ERR_VALID_LEVEL) { level = ((error_info >> CPER_ARM_ERR_LEVEL_SHIFT) & CPER_ARM_ERR_LEVEL_MASK); - switch (type) { - case CPER_ARM_CACHE_ERROR: + if (type & CPER_ARM_CACHE_ERROR) printk("%scache level: %d\n", pfx, level); - break; - case CPER_ARM_TLB_ERROR: + + if (type & CPER_ARM_TLB_ERROR) printk("%sTLB level: %d\n", pfx, level); - break; - case CPER_ARM_BUS_ERROR: + + if (type & CPER_ARM_BUS_ERROR) printk("%saffinity level at which the bus error occurred: %d\n", pfx, level); - break; - } } if (error_info & CPER_ARM_ERR_VALID_PROC_CONTEXT_CORRUPT) { @@ -240,7 +231,8 @@ void cper_print_proc_arm(const char *pfx, int i, len, max_ctx_type; struct cper_arm_err_info *err_info; struct cper_arm_ctx_info *ctx_info; - char newpfx[64], infopfx[64]; + char newpfx[64], infopfx[ARRAY_SIZE(newpfx) + 1]; + char error_type[120]; printk("%sMIDR: 0x%016llx\n", pfx, proc->midr); @@ -289,9 +281,15 @@ void cper_print_proc_arm(const char *pfx, newpfx); } - printk("%serror_type: %d, %s\n", newpfx, err_info->type, - err_info->type < ARRAY_SIZE(cper_proc_error_type_strs) ? - cper_proc_error_type_strs[err_info->type] : "unknown"); + cper_bits_to_str(error_type, sizeof(error_type), + FIELD_GET(CPER_ARM_ERR_TYPE_MASK, err_info->type), + cper_proc_error_type_strs, + ARRAY_SIZE(cper_proc_error_type_strs)); + + printk("%serror_type: 0x%02x: %s%s\n", newpfx, err_info->type, + error_type, + (err_info->type & ~CPER_ARM_ERR_TYPE_MASK) ? " with reserved bit(s)" : ""); + if (err_info->validation_bits & CPER_ARM_INFO_VALID_ERR_INFO) { printk("%serror_info: 0x%016llx\n", newpfx, err_info->error_info); diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c index 928409199a1a..0232bd040f61 100644 --- a/drivers/firmware/efi/cper.c +++ b/drivers/firmware/efi/cper.c @@ -12,6 +12,7 @@ * Specification version 2.4. */ +#include <linux/bitmap.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/time.h> @@ -69,7 +70,7 @@ const char *cper_severity_str(unsigned int severity) } EXPORT_SYMBOL_GPL(cper_severity_str); -/* +/** * cper_print_bits - print strings for set bits * @pfx: prefix for each line, including log level and prefix string * @bits: bit mask @@ -106,6 +107,65 @@ void cper_print_bits(const char *pfx, unsigned int bits, printk("%s\n", buf); } +/** + * cper_bits_to_str - return a string for set bits + * @buf: buffer to store the output string + * @buf_size: size of the output string buffer + * @bits: bit mask + * @strs: string array, indexed by bit position + * @strs_size: size of the string array: @strs + * + * Add to @buf the bitmask in hexadecimal. Then, for each set bit in @bits, + * add the corresponding string describing the bit in @strs to @buf. + * + * A typical example is:: + * + * const char * const bits[] = { + * "bit 3 name", + * "bit 4 name", + * "bit 5 name", + * }; + * char str[120]; + * unsigned int bitmask = BIT(3) | BIT(5); + * #define MASK GENMASK(5,3) + * + * cper_bits_to_str(str, sizeof(str), FIELD_GET(MASK, bitmask), + * bits, ARRAY_SIZE(bits)); + * + * The above code fills the string ``str`` with ``bit 3 name|bit 5 name``. + * + * Return: number of bytes stored or an error code if lower than zero. + */ +int cper_bits_to_str(char *buf, int buf_size, unsigned long bits, + const char * const strs[], unsigned int strs_size) +{ + int len = buf_size; + char *str = buf; + int i, size; + + *buf = '\0'; + + for_each_set_bit(i, &bits, strs_size) { + if (!(bits & BIT_ULL(i))) + continue; + + if (*buf && len > 0) { + *str = '|'; + len--; + str++; + } + + size = strscpy(str, strs[i], len); + if (size < 0) + return size; + + len -= size; + str += size; + } + return len - buf_size; +} +EXPORT_SYMBOL_GPL(cper_bits_to_str); + static const char * const proc_type_strs[] = { "IA32/X64", "IA64", diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index 1ce428e2ac8a..a9070d00b833 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -74,6 +74,9 @@ struct mm_struct efi_mm = { .page_table_lock = __SPIN_LOCK_UNLOCKED(efi_mm.page_table_lock), .mmlist = LIST_HEAD_INIT(efi_mm.mmlist), .cpu_bitmap = { [BITS_TO_LONGS(NR_CPUS)] = 0}, +#ifdef CONFIG_SCHED_MM_CID + .mm_cid.lock = __RAW_SPIN_LOCK_UNLOCKED(efi_mm.mm_cid.lock), +#endif }; struct workqueue_struct *efi_rts_wq; diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile index 94b05e4451dd..7d15a85d579f 100644 --- a/drivers/firmware/efi/libstub/Makefile +++ b/drivers/firmware/efi/libstub/Makefile @@ -11,12 +11,12 @@ cflags-y := $(KBUILD_CFLAGS) cflags-$(CONFIG_X86_32) := -march=i386 cflags-$(CONFIG_X86_64) := -mcmodel=small -cflags-$(CONFIG_X86) += -m$(BITS) -D__KERNEL__ -std=gnu11 \ +cflags-$(CONFIG_X86) += -m$(BITS) -D__KERNEL__ -std=gnu11 -fms-extensions \ -fPIC -fno-strict-aliasing -mno-red-zone \ -mno-mmx -mno-sse -fshort-wchar \ -Wno-pointer-sign \ $(call cc-disable-warning, address-of-packed-member) \ - $(call cc-disable-warning, gnu) \ + $(if $(CONFIG_CC_IS_CLANG),-Wno-gnu -Wno-microsoft-anon-tag) \ -fno-asynchronous-unwind-tables \ $(CLANG_FLAGS) diff --git a/drivers/firmware/efi/libstub/efi-stub.c b/drivers/firmware/efi/libstub/efi-stub.c index 874f63b4a383..9cb814c5ba1b 100644 --- a/drivers/firmware/efi/libstub/efi-stub.c +++ b/drivers/firmware/efi/libstub/efi-stub.c @@ -56,7 +56,7 @@ static struct screen_info *setup_graphics(void) { struct screen_info *si, tmp = {}; - if (efi_setup_gop(&tmp) != EFI_SUCCESS) + if (efi_setup_graphics(&tmp, NULL) != EFI_SUCCESS) return NULL; si = alloc_screen_info(); diff --git a/drivers/firmware/efi/libstub/efistub.h b/drivers/firmware/efi/libstub/efistub.h index f5ba032863a9..b2fb0c3fa721 100644 --- a/drivers/firmware/efi/libstub/efistub.h +++ b/drivers/firmware/efi/libstub/efistub.h @@ -34,6 +34,9 @@ #define EFI_ALLOC_LIMIT ULONG_MAX #endif +struct edid_info; +struct screen_info; + extern bool efi_no5lvl; extern bool efi_nochunk; extern bool efi_nokaslr; @@ -578,6 +581,32 @@ union efi_graphics_output_protocol { } mixed_mode; }; +typedef union efi_edid_discovered_protocol efi_edid_discovered_protocol_t; + +union efi_edid_discovered_protocol { + struct { + u32 size_of_edid; + u8 *edid; + }; + struct { + u32 size_of_edid; + u32 edid; + } mixed_mode; +}; + +typedef union efi_edid_active_protocol efi_edid_active_protocol_t; + +union efi_edid_active_protocol { + struct { + u32 size_of_edid; + u8 *edid; + }; + struct { + u32 size_of_edid; + u32 edid; + } mixed_mode; +}; + typedef union { struct { u32 revision; @@ -1085,7 +1114,7 @@ efi_status_t efi_parse_options(char const *cmdline); void efi_parse_option_graphics(char *option); -efi_status_t efi_setup_gop(struct screen_info *si); +efi_status_t efi_setup_graphics(struct screen_info *si, struct edid_info *edid); efi_status_t handle_cmdline_files(efi_loaded_image_t *image, const efi_char16_t *optstr, diff --git a/drivers/firmware/efi/libstub/gop.c b/drivers/firmware/efi/libstub/gop.c index 3785fb4986b4..72d74436a7a4 100644 --- a/drivers/firmware/efi/libstub/gop.c +++ b/drivers/firmware/efi/libstub/gop.c @@ -12,6 +12,7 @@ #include <linux/string.h> #include <asm/efi.h> #include <asm/setup.h> +#include <video/edid.h> #include "efistub.h" @@ -367,24 +368,31 @@ static void find_bits(u32 mask, u8 *pos, u8 *size) *size = __fls(mask) - *pos + 1; } -static void -setup_pixel_info(struct screen_info *si, u32 pixels_per_scan_line, - efi_pixel_bitmask_t pixel_info, int pixel_format) +static void setup_screen_info(struct screen_info *si, const efi_graphics_output_protocol_t *gop) { - if (pixel_format == PIXEL_BIT_MASK) { - find_bits(pixel_info.red_mask, - &si->red_pos, &si->red_size); - find_bits(pixel_info.green_mask, - &si->green_pos, &si->green_size); - find_bits(pixel_info.blue_mask, - &si->blue_pos, &si->blue_size); - find_bits(pixel_info.reserved_mask, - &si->rsvd_pos, &si->rsvd_size); - si->lfb_depth = si->red_size + si->green_size + - si->blue_size + si->rsvd_size; - si->lfb_linelength = (pixels_per_scan_line * si->lfb_depth) / 8; + const efi_graphics_output_protocol_mode_t *mode = efi_table_attr(gop, mode); + const efi_graphics_output_mode_info_t *info = efi_table_attr(mode, info); + + si->orig_video_isVGA = VIDEO_TYPE_EFI; + + si->lfb_width = info->horizontal_resolution; + si->lfb_height = info->vertical_resolution; + + efi_set_u64_split(efi_table_attr(mode, frame_buffer_base), + &si->lfb_base, &si->ext_lfb_base); + if (si->ext_lfb_base) + si->capabilities |= VIDEO_CAPABILITY_64BIT_BASE; + si->pages = 1; + + if (info->pixel_format == PIXEL_BIT_MASK) { + find_bits(info->pixel_information.red_mask, &si->red_pos, &si->red_size); + find_bits(info->pixel_information.green_mask, &si->green_pos, &si->green_size); + find_bits(info->pixel_information.blue_mask, &si->blue_pos, &si->blue_size); + find_bits(info->pixel_information.reserved_mask, &si->rsvd_pos, &si->rsvd_size); + si->lfb_depth = si->red_size + si->green_size + si->blue_size + si->rsvd_size; + si->lfb_linelength = (info->pixels_per_scan_line * si->lfb_depth) / 8; } else { - if (pixel_format == PIXEL_RGB_RESERVED_8BIT_PER_COLOR) { + if (info->pixel_format == PIXEL_RGB_RESERVED_8BIT_PER_COLOR) { si->red_pos = 0; si->blue_pos = 16; } else /* PIXEL_BGR_RESERVED_8BIT_PER_COLOR */ { @@ -394,20 +402,33 @@ setup_pixel_info(struct screen_info *si, u32 pixels_per_scan_line, si->green_pos = 8; si->rsvd_pos = 24; - si->red_size = si->green_size = - si->blue_size = si->rsvd_size = 8; - + si->red_size = 8; + si->green_size = 8; + si->blue_size = 8; + si->rsvd_size = 8; si->lfb_depth = 32; - si->lfb_linelength = pixels_per_scan_line * 4; + si->lfb_linelength = info->pixels_per_scan_line * 4; } + + si->lfb_size = si->lfb_linelength * si->lfb_height; + si->capabilities |= VIDEO_CAPABILITY_SKIP_QUIRKS; } -static efi_graphics_output_protocol_t *find_gop(unsigned long num, - const efi_handle_t handles[]) +static void setup_edid_info(struct edid_info *edid, u32 gop_size_of_edid, u8 *gop_edid) +{ + if (!gop_edid || gop_size_of_edid < 128) + memset(edid->dummy, 0, sizeof(edid->dummy)); + else + memcpy(edid->dummy, gop_edid, min(gop_size_of_edid, sizeof(edid->dummy))); +} + +static efi_handle_t find_handle_with_primary_gop(unsigned long num, const efi_handle_t handles[], + efi_graphics_output_protocol_t **found_gop) { efi_graphics_output_protocol_t *first_gop; - efi_handle_t h; + efi_handle_t h, first_gop_handle; + first_gop_handle = NULL; first_gop = NULL; for_each_efi_handle(h, handles, num) { @@ -442,21 +463,25 @@ static efi_graphics_output_protocol_t *find_gop(unsigned long num, */ status = efi_bs_call(handle_protocol, h, &EFI_CONSOLE_OUT_DEVICE_GUID, &dummy); - if (status == EFI_SUCCESS) - return gop; - - if (!first_gop) + if (status == EFI_SUCCESS) { + if (found_gop) + *found_gop = gop; + return h; + } else if (!first_gop_handle) { + first_gop_handle = h; first_gop = gop; + } } - return first_gop; + if (found_gop) + *found_gop = first_gop; + return first_gop_handle; } -efi_status_t efi_setup_gop(struct screen_info *si) +efi_status_t efi_setup_graphics(struct screen_info *si, struct edid_info *edid) { efi_handle_t *handles __free(efi_pool) = NULL; - efi_graphics_output_protocol_mode_t *mode; - efi_graphics_output_mode_info_t *info; + efi_handle_t handle; efi_graphics_output_protocol_t *gop; efi_status_t status; unsigned long num; @@ -467,35 +492,41 @@ efi_status_t efi_setup_gop(struct screen_info *si) if (status != EFI_SUCCESS) return status; - gop = find_gop(num, handles); - if (!gop) + handle = find_handle_with_primary_gop(num, handles, &gop); + if (!handle) return EFI_NOT_FOUND; /* Change mode if requested */ set_mode(gop); /* EFI framebuffer */ - mode = efi_table_attr(gop, mode); - info = efi_table_attr(mode, info); - - si->orig_video_isVGA = VIDEO_TYPE_EFI; - - si->lfb_width = info->horizontal_resolution; - si->lfb_height = info->vertical_resolution; - - efi_set_u64_split(efi_table_attr(mode, frame_buffer_base), - &si->lfb_base, &si->ext_lfb_base); - if (si->ext_lfb_base) - si->capabilities |= VIDEO_CAPABILITY_64BIT_BASE; - - si->pages = 1; - - setup_pixel_info(si, info->pixels_per_scan_line, - info->pixel_information, info->pixel_format); - - si->lfb_size = si->lfb_linelength * si->lfb_height; + if (si) + setup_screen_info(si, gop); + + /* Display EDID for primary GOP */ + if (edid) { + efi_edid_discovered_protocol_t *discovered_edid; + efi_edid_active_protocol_t *active_edid; + u32 gop_size_of_edid = 0; + u8 *gop_edid = NULL; + + status = efi_bs_call(handle_protocol, handle, &EFI_EDID_ACTIVE_PROTOCOL_GUID, + (void **)&active_edid); + if (status == EFI_SUCCESS) { + gop_size_of_edid = active_edid->size_of_edid; + gop_edid = active_edid->edid; + } else { + status = efi_bs_call(handle_protocol, handle, + &EFI_EDID_DISCOVERED_PROTOCOL_GUID, + (void **)&discovered_edid); + if (status == EFI_SUCCESS) { + gop_size_of_edid = discovered_edid->size_of_edid; + gop_edid = discovered_edid->edid; + } + } - si->capabilities |= VIDEO_CAPABILITY_SKIP_QUIRKS; + setup_edid_info(edid, gop_size_of_edid, gop_edid); + } return EFI_SUCCESS; } diff --git a/drivers/firmware/efi/libstub/x86-5lvl.c b/drivers/firmware/efi/libstub/x86-5lvl.c index f1c5fb45d5f7..c00d0ae7ed5d 100644 --- a/drivers/firmware/efi/libstub/x86-5lvl.c +++ b/drivers/firmware/efi/libstub/x86-5lvl.c @@ -66,7 +66,7 @@ void efi_5level_switch(void) bool have_la57 = native_read_cr4() & X86_CR4_LA57; bool need_toggle = want_la57 ^ have_la57; u64 *pgt = (void *)la57_toggle + PAGE_SIZE; - u64 *cr3 = (u64 *)__native_read_cr3(); + pgd_t *cr3 = (pgd_t *)native_read_cr3_pa(); u64 *new_cr3; if (!la57_toggle || !need_toggle) @@ -82,7 +82,7 @@ void efi_5level_switch(void) new_cr3[0] = (u64)cr3 | _PAGE_TABLE_NOENC; } else { /* take the new root table pointer from the current entry #0 */ - new_cr3 = (u64 *)(cr3[0] & PAGE_MASK); + new_cr3 = (u64 *)(native_pgd_val(cr3[0]) & PTE_PFN_MASK); /* copy the new root table if it is not 32-bit addressable */ if ((u64)new_cr3 > U32_MAX) diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi/libstub/x86-stub.c index 761121a77f9e..cef32e2c82d8 100644 --- a/drivers/firmware/efi/libstub/x86-stub.c +++ b/drivers/firmware/efi/libstub/x86-stub.c @@ -203,6 +203,104 @@ static void retrieve_apple_device_properties(struct boot_params *boot_params) } } +struct smbios_entry_point { + u8 anchor[4]; + u8 ep_checksum; + u8 ep_length; + u8 major_version; + u8 minor_version; + u16 max_size_entry; + u8 ep_rev; + u8 reserved[5]; + + struct __packed { + u8 anchor[5]; + u8 checksum; + u16 st_length; + u32 st_address; + u16 number_of_entries; + u8 bcd_rev; + } intm; +}; + +static bool verify_ep_checksum(const void *ptr, int length) +{ + u8 sum = 0; + + for (int i = 0; i < length; i++) + sum += ((u8 *)ptr)[i]; + + return sum == 0; +} + +static bool verify_ep_integrity(const struct smbios_entry_point *ep) +{ + if (memcmp(ep->anchor, "_SM_", sizeof(ep->anchor)) != 0) + return false; + + if (memcmp(ep->intm.anchor, "_DMI_", sizeof(ep->intm.anchor)) != 0) + return false; + + if (!verify_ep_checksum(ep, ep->ep_length) || + !verify_ep_checksum(&ep->intm, sizeof(ep->intm))) + return false; + + return true; +} + +static const struct efi_smbios_record *search_record(void *table, u32 length, + u8 type) +{ + const u8 *p, *end; + + p = (u8 *)table; + end = p + length; + + while (p + sizeof(struct efi_smbios_record) < end) { + const struct efi_smbios_record *hdr = + (struct efi_smbios_record *)p; + const u8 *next; + + if (hdr->type == type) + return hdr; + + /* Type 127 = End-of-Table */ + if (hdr->type == 0x7F) + return NULL; + + /* Jumping to the unformed section */ + next = p + hdr->length; + + /* Unformed section ends with 0000h */ + while ((next[0] != 0 || next[1] != 0) && next + 1 < end) + next++; + + next += 2; + p = next; + } + + return NULL; +} + +static const struct efi_smbios_record *get_table_record(u8 type) +{ + const struct smbios_entry_point *ep; + + /* + * Locate the legacy 32-bit SMBIOS entrypoint in memory, and parse it + * directly. Needed by some Macs that do not implement the EFI protocol. + */ + ep = get_efi_config_table(SMBIOS_TABLE_GUID); + if (!ep) + return NULL; + + if (!verify_ep_integrity(ep)) + return NULL; + + return search_record((void *)(unsigned long)ep->intm.st_address, + ep->intm.st_length, type); +} + static bool apple_match_product_name(void) { static const char type1_product_matches[][15] = { @@ -218,7 +316,8 @@ static bool apple_match_product_name(void) const struct efi_smbios_type1_record *record; const u8 *product; - record = (struct efi_smbios_type1_record *)efi_get_smbios_record(1); + record = (struct efi_smbios_type1_record *) + (efi_get_smbios_record(1) ?: get_table_record(1)); if (!record) return false; @@ -388,8 +487,9 @@ static void setup_quirks(struct boot_params *boot_params) static void setup_graphics(struct boot_params *boot_params) { struct screen_info *si = memset(&boot_params->screen_info, 0, sizeof(*si)); + struct edid_info *edid = memset(&boot_params->edid_info, 0, sizeof(*edid)); - efi_setup_gop(si); + efi_setup_graphics(si, edid); } static void __noreturn efi_exit(efi_handle_t handle, efi_status_t status) diff --git a/drivers/firmware/efi/memattr.c b/drivers/firmware/efi/memattr.c index c38b1a335590..e727cc5909cb 100644 --- a/drivers/firmware/efi/memattr.c +++ b/drivers/firmware/efi/memattr.c @@ -19,19 +19,19 @@ unsigned long __ro_after_init efi_mem_attr_table = EFI_INVALID_TABLE_ADDR; * Reserve the memory associated with the Memory Attributes configuration * table, if it exists. */ -int __init efi_memattr_init(void) +void __init efi_memattr_init(void) { efi_memory_attributes_table_t *tbl; unsigned long size; if (efi_mem_attr_table == EFI_INVALID_TABLE_ADDR) - return 0; + return; tbl = early_memremap(efi_mem_attr_table, sizeof(*tbl)); if (!tbl) { pr_err("Failed to map EFI Memory Attributes table @ 0x%lx\n", efi_mem_attr_table); - return -ENOMEM; + return; } if (tbl->version > 2) { @@ -61,7 +61,6 @@ int __init efi_memattr_init(void) unmap: early_memunmap(tbl, sizeof(*tbl)); - return 0; } /* diff --git a/drivers/firmware/efi/riscv-runtime.c b/drivers/firmware/efi/riscv-runtime.c index fa71cd898120..4a2588358be2 100644 --- a/drivers/firmware/efi/riscv-runtime.c +++ b/drivers/firmware/efi/riscv-runtime.c @@ -36,20 +36,12 @@ static bool __init efi_virtmap_init(void) init_new_context(NULL, &efi_mm); for_each_efi_memory_desc(md) { - phys_addr_t phys = md->phys_addr; - int ret; - if (!(md->attribute & EFI_MEMORY_RUNTIME)) continue; if (md->virt_addr == U64_MAX) return false; - ret = efi_create_mapping(&efi_mm, md); - if (ret) { - pr_warn(" EFI remap %pa: failed to create mapping (%d)\n", - &phys, ret); - return false; - } + efi_create_mapping(&efi_mm, md); } if (efi_memattr_apply_permissions(&efi_mm, efi_set_mapping_permissions)) diff --git a/drivers/firmware/efi/runtime-wrappers.c b/drivers/firmware/efi/runtime-wrappers.c index 708b777857d3..da8d29621644 100644 --- a/drivers/firmware/efi/runtime-wrappers.c +++ b/drivers/firmware/efi/runtime-wrappers.c @@ -202,6 +202,8 @@ void efi_call_virt_check_flags(unsigned long flags, const void *caller) */ static DEFINE_SEMAPHORE(efi_runtime_lock, 1); +static struct task_struct *efi_runtime_lock_owner; + /* * Expose the EFI runtime lock to the UV platform */ @@ -219,6 +221,8 @@ static void __nocfi efi_call_rts(struct work_struct *work) efi_status_t status = EFI_NOT_FOUND; unsigned long flags; + efi_runtime_lock_owner = current; + arch_efi_call_virt_setup(); flags = efi_call_virt_save_flags(); @@ -310,6 +314,7 @@ static void __nocfi efi_call_rts(struct work_struct *work) efi_rts_work.status = status; complete(&efi_rts_work.efi_rts_comp); + efi_runtime_lock_owner = NULL; } static efi_status_t __efi_queue_work(enum efi_rts_ids id, @@ -444,8 +449,10 @@ virt_efi_set_variable_nb(efi_char16_t *name, efi_guid_t *vendor, u32 attr, if (down_trylock(&efi_runtime_lock)) return EFI_NOT_READY; + efi_runtime_lock_owner = current; status = efi_call_virt_pointer(efi.runtime, set_variable, name, vendor, attr, data_size, data); + efi_runtime_lock_owner = NULL; up(&efi_runtime_lock); return status; } @@ -481,9 +488,11 @@ virt_efi_query_variable_info_nb(u32 attr, u64 *storage_space, if (down_trylock(&efi_runtime_lock)) return EFI_NOT_READY; + efi_runtime_lock_owner = current; status = efi_call_virt_pointer(efi.runtime, query_variable_info, attr, storage_space, remaining_space, max_variable_size); + efi_runtime_lock_owner = NULL; up(&efi_runtime_lock); return status; } @@ -509,12 +518,13 @@ virt_efi_reset_system(int reset_type, efi_status_t status, return; } + efi_runtime_lock_owner = current; arch_efi_call_virt_setup(); efi_rts_work.efi_rts_id = EFI_RESET_SYSTEM; arch_efi_call_virt(efi.runtime, reset_system, reset_type, status, data_size, data); arch_efi_call_virt_teardown(); - + efi_runtime_lock_owner = NULL; up(&efi_runtime_lock); } @@ -587,3 +597,8 @@ efi_call_acpi_prm_handler(efi_status_t (__efiapi *handler_addr)(u64, void *), } #endif + +void efi_runtime_assert_lock_held(void) +{ + WARN_ON(efi_runtime_lock_owner != current); +} diff --git a/drivers/firmware/efi/stmm/mm_communication.h b/drivers/firmware/efi/stmm/mm_communication.h index 52a1f32cd1eb..06e7663f96dc 100644 --- a/drivers/firmware/efi/stmm/mm_communication.h +++ b/drivers/firmware/efi/stmm/mm_communication.h @@ -32,7 +32,7 @@ /** * struct efi_mm_communicate_header - Header used for SMM variable communication - + * * @header_guid: header use for disambiguation of content * @message_len: length of the message. Does not include the size of the * header @@ -111,7 +111,7 @@ struct efi_mm_communicate_header { /** * struct smm_variable_communicate_header - Used for SMM variable communication - + * * @function: function to call in Smm. * @ret_status: return status * @data: payload @@ -128,7 +128,7 @@ struct smm_variable_communicate_header { /** * struct smm_variable_access - Used to communicate with StMM by * SetVariable and GetVariable. - + * * @guid: vendor GUID * @data_size: size of EFI variable data * @name_size: size of EFI name diff --git a/drivers/firmware/qcom/qcom_scm.c b/drivers/firmware/qcom/qcom_scm.c index e777b7cb9b12..1a6f85e463e0 100644 --- a/drivers/firmware/qcom/qcom_scm.c +++ b/drivers/firmware/qcom/qcom_scm.c @@ -2018,21 +2018,6 @@ static const struct of_device_id qcom_scm_qseecom_allowlist[] __maybe_unused = { { } }; -static bool qcom_scm_qseecom_machine_is_allowed(void) -{ - struct device_node *np; - bool match; - - np = of_find_node_by_path("/"); - if (!np) - return false; - - match = of_match_node(qcom_scm_qseecom_allowlist, np); - of_node_put(np); - - return match; -} - static void qcom_scm_qseecom_free(void *data) { struct platform_device *qseecom_dev = data; @@ -2064,7 +2049,7 @@ static int qcom_scm_qseecom_init(struct qcom_scm *scm) dev_info(scm->dev, "qseecom: found qseecom with version 0x%x\n", version); - if (!qcom_scm_qseecom_machine_is_allowed()) { + if (!of_machine_device_match(qcom_scm_qseecom_allowlist)) { dev_info(scm->dev, "qseecom: untested machine, skipping\n"); return 0; } diff --git a/drivers/firmware/stratix10-svc.c b/drivers/firmware/stratix10-svc.c index e3f990d888d7..00f58e27f6de 100644 --- a/drivers/firmware/stratix10-svc.c +++ b/drivers/firmware/stratix10-svc.c @@ -134,6 +134,7 @@ struct stratix10_svc_data { * @complete_status: state for completion * @svc_fifo_lock: protect access to service message data queue * @invoke_fn: function to issue secure monitor call or hypervisor call + * @svc: manages the list of client svc drivers * * This struct is used to create communication channels for service clients, to * handle secure monitor or hypervisor call. @@ -150,6 +151,7 @@ struct stratix10_svc_controller { struct completion complete_status; spinlock_t svc_fifo_lock; svc_invoke_fn *invoke_fn; + struct stratix10_svc *svc; }; /** @@ -1206,6 +1208,7 @@ static int stratix10_svc_drv_probe(struct platform_device *pdev) ret = -ENOMEM; goto err_free_kfifo; } + controller->svc = svc; svc->stratix10_svc_rsu = platform_device_alloc(STRATIX10_RSU, 0); if (!svc->stratix10_svc_rsu) { @@ -1237,8 +1240,6 @@ static int stratix10_svc_drv_probe(struct platform_device *pdev) if (ret) goto err_unregister_fcs_dev; - dev_set_drvdata(dev, svc); - pr_info("Intel Service Layer Driver Initialized\n"); return 0; @@ -1256,8 +1257,8 @@ err_destroy_pool: static void stratix10_svc_drv_remove(struct platform_device *pdev) { - struct stratix10_svc *svc = dev_get_drvdata(&pdev->dev); struct stratix10_svc_controller *ctrl = platform_get_drvdata(pdev); + struct stratix10_svc *svc = ctrl->svc; of_platform_depopulate(ctrl->dev); |
